hgundas 发表于 2020-4-20 03:56:24

ISO 683-17:2014 Heat-treated steels, alloy steels and free-cutting steels —



ISO 683-17:2014
Heat-treated steels, alloy steels and
free-cutting steels —
Part 17:
Ball and roller bearing steels

admin 发表于 2020-4-25 23:19:27

谢谢您的分享，金币已奖励!
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